Surgical device with smart bit recognition collet assembly to set a desired application mode

Active Publication Date: 2011-12-08
ZIMMER BIOMET CMF & THORACIC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0008]To make manifest the above noted and other manifold desires, a revelation of the present invention is brought forth. In a preferred embodiment, the present invention provides a surgical drill/driver wherein various operating modes of the drill/driver are automatically set by a controller that recognizes a bit applied to the d

Problems solved by technology

Although hand torquing threaded surgical screws to attach a plate to a patient's bone is efficient, there are certain undesirable conditions that can occur.
Hand torquing a surgical screw can provide a less than optimal result due to the inherent wobble in the rotational axis of a screw driver when the screw driver is turned manually.
Even in the hands of the most skilled surgeon, some wobble typically occurs.
Secondly, strip out of the threads formed in the bone by over torquing the surgical scre

Method used

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  • Surgical device with smart bit recognition collet assembly to set a desired application mode
  • Surgical device with smart bit recognition collet assembly to set a desired application mode
  • Surgical device with smart bit recognition collet assembly to set a desired application mode

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Example

[0035]The following description of the preferred embodiment(s) is merely exemplary in nature and is in no way intended to limit the invention, its application, or uses.

[0036]Referring to FIGS. 1, 2 and 3, a multiple use surgical drill / driver assembly 7 with a smart bit recognition system is provided. The surgical drill / driver 7 has a drill body 10. The drill body 10 is typically fabricated from a metal or polymeric material. The drill body 10 in its rearward end is connected with a battery pack 14 to allow the surgical drill / driver 7 to function without a power cord.

[0037]The drill body 10 mounts a brushless motor 11. The motor 11 typically has a nominal 20 watt output with a stall torque of 195 m Nm and has a variable (no load) speed to 35,500 rpm. A large portion of the control electronics are located on a circuit board 23 located under the motor 11. The drill body 10 has a handle 22. An overhead manual control trigger 24 is responsive to an input of the surgeon. The trigger 24 pr...

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PUM

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Abstract

A surgical device of a drill/driver with bit recognition to set a desired application mode and a method of utilization thereof is provided. Various operating modes of the drill/driver are automatically set by a sensor which recognizes the bit applied to the drill/driver. A method of utilizing the drill/driver allows the drill driver to apply surgical screws at very high speeds while automatically preventing excessive torque levels that would strip out the surgical screw from the patient's bone.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS[0001]This application claims the benefit of U.S. Provisional Application No. 61 / 396,803, filed Jun. 3, 2010.FIELD OF THE INVENTION[0002]The present invention relates to methods of securing a threaded fastener into a patient's body and to a surgical drill / driver utilized for inserting and torquing a surgical screw into a patient's body.BACKGROUND OF THE INVENTION[0003]Surgical screws are utilized for various purposes in surgical operations. Surgical screws are utilized for repairing fractures in bones or for attaching a prosthesis to a bone. Surgical screws are also utilized for plates connected with a patient's body either permanently or temporarily after an operation. When using a surgical drill / driver in an operating environment, it is desirable that the drill / driver torque the screw within the patient's body in the safest, most efficient manner possible.[0004]In many facial or cranial operations, a plate is utilized to stabilize two section...

Claims

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Application Information

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IPC IPC(8): A61B17/16A61B17/56
CPCA61B17/162A61B17/1626A61B17/8875A61B19/44A61B17/8625B25B21/00B25B23/0035B25B23/14A61B17/16A61B2019/301A61B2090/031A61B90/90A61B2090/066A61B90/03A61B90/98A61B17/1617B25B21/002B25B23/147
Inventor GARCIA, SADDY R.WINTERROTH, BRADLEYLUBY, RYAN NICHOLASMILLER, LARRYDYER, CHRISTOPHER C.GRAY, BENJAMIN J.MEREDITH, ALLAN J.
Owner ZIMMER BIOMET CMF & THORACIC
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